Home / 28,041.21-38,694.38-16,103.43

Finding the Fourth Proportional to 28,041.21, 38,694.38 and 16,103.43

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Solution

The fourth proportional to 28,041.21, 38,694.38 and 16,103.43 is: 22,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,041.21 : 38,694.38 = 16,103.43 : x
  2. Step 2: Convert to fraction form
    28,041.21/38,694.38 = 16,103.43/x
  3. Step 3: Cross multiply
    28,041.21x = 38,694.38 × 16,103.43
  4. Step 4: Simplify right side
    28,041.21x = 623,112,159.21
  5. Step 5: Solve for x
    x = 623,112,159.21/28,041.21
  6. Step 6: Final answer
    x = 22,221.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.